wright



2 Sheets-Sheet 1.

A. W. WRIGHT.

Sled Brake.

Patented Feb; 2, 1869.

2 Sheets-Sheet 2.

A. w. WRIGHT.

Sled Brake.

- Patented Feb. 2, 1869.

fnveniwz A. .wl WRIGH '1, e F o A Lv I PEN s Y-L' A N I A Letters PatentNo. 86,487, dated February 2,1869; 'wntedated Jdnua/ry 30, 1869.

IMPROVEWNT IN SLED-BRAKE.

Schedule Mama win these Letters mm: and assume.

Toallrvhomttmageoneem: I

Be it known that I, ZA. WRIGHT, of Calvin, in the county of Huntingdon', inthe-State of Pennsyl'vay nia, have invented a new" and improved Sled-Brake,or

L Lock; and I do hereby declare that the following is a full and enact description thereof, reference being bad to the accompanying drawings, and to the letters of reference marked thereon: V

. The nature of my inventionconsists in. forming,- on

the rearendndf thesled-tongue, a sliding tenom'which passes through a-rnortise in the centre of the front beneh, and is attached to a. wooden cross-piece, to either end of which is fastened an iron cutter extending downward, being bolted to the-sideor passing'through the" centre of the runners. l H

--Inafi'ont of the cross-piece, and in the rear of the front bench, there is'aniron orvrooden pin, which passes through thetnon, preventing the tongue fiom being drawn too far forwerd, and, at the'crossrhar of the sled there is another pin, the front hole of the tongue,

which may he placed in if'it is desired to have a; permanent lock, or in the second hole, when itis desired to force the sled backward, or to'render the brake or look powerless.

' To enable others to make and use my invention, 1.

will proceed toldescribe' its construction and operation. The sled-tongue is of the usual kind, excepting thatupon the rear, end of it is a sliding tenon, which'passes through the front bench, and attaches piece, as above stated. v The cro'ss-piece'islof wood, and the iron cutters are to the cross-i ihstened to theends ='thereof by a bolt or screw, but notso ghtly-fastend'as to prevent their forming joints.

Oneither end of the cross-pieee is an iron band, It?) prevent, it from splitting. orwearing. I

v The ends of the cutters curve orlare bent toward the rear of the runner, so that they may'take proper effect when forced forward.

The cutters are fastened tothe runners by man er ii'on screws or bolts. v 4 v 1 When a sled 'to which my invention is attached is descending a hill, the pressure causes the tongue to force the cross-piece backward,'thnsmaking the cut-, ters to operate in proportion totbe pressurqas t ey;

a be seen by reference totfi'eannexed drawings, making part of this specification, in which fiFigurel is a' viewof myin-ventiom when applied to afsled. j r 2 v t Figure 2, a view\of my invention.

Letter Arepresents the tongue of the'sled.

Letter B represents the eross-piecei Letter (3 represents the slidingtenon:

Letter D'represents the mortise in oross piede."

Letter E represents an .iron' or wooden bolt. Letter F represents aniron bolt.

Letter G represents a bolt-hole.

lLetters H and I represent the bolts fhstening .cut ters to. cross-piece."

Letters K and L represent the cuttersf. i

Letters N and.v O represent bolts'fastening cutters we Whatl claim asnew, and desire'tosecure by'Lets ters Patent,is v

The combination; and "arrangement of the several parts 'composinga self-acting'sled-brake, as shown and described. 7 r

V Witnesses:

e B. N. Lvrnn,

T. W. Myron-f 

